La Fête des lumières occurs every holiday season in Lyon, France. This unique celebration houses more than 4 million tourists over the course of four days as the city explodes with color and light. The results are like nothing else you’ve seen.

Stephen Powers is giving the term love letter a whole new meaning with his innovative art project, A Love Letter for You. Partnering with City of Philadelphia Mural Arts Program, he has been transforming the city one wall at a time to infuse industrial facades with a little more levity, light, and (oh yeah) love. All of the murals were developed for ideal viewing when riding the rail around the city.

Don’t you just love the idea of giving a cold and hardened metropolis a softer voice? These “sweet nothings” make for a huge transformation.